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    RD Fresh - Reduce - Recycle - Reuse

    Zero Footprint

    RD Fresh is a 100% Recyclable - 100% Sustainable Product

    When food rots, it releases methane, a greenhouse gas which the U.S. Environmental Protection Agency (EPA) says is 20 times more damaging to the environment than carbon dioxide (CO2) and traps 23 times as much heat in the atmosphere. Not only does RD Fresh help our planet by reducing food waste and in turn lowering these greenhouse gas emissions, it is also 100% recyclable and has no negative impact on our environment.

    The same gases that RD Fresh absorbs to keep your food fresh also make great fertilizers. Simply cut open the Tyvek pouch and pour the 100% natural mineral mix directly into your garden or potted plant soil and will act as an enhanced time release fertilizer. Even the Tyvek bag can be sent back to DuPont and recycled!

    Read what the experts say about Zeolites and soil

    U.S. Geological Survey Controlled-Release Fertilizers Using Zeolites

    U.S. Geological Survey

    The U.S. Geological Survey (USGS) has experimented with zeolites to help control the release of fertilizer nutrients in soil. Zeolites are porous minerals with high cation - exchange capacity that can help control the release of plant nutrients in agricultural systems. Zeolites can free soluble plant nutrients already in soil, and may improve soil fertility and water retention. Because zeolites are common, these unique minerals could be useful on a large-scale in agriculture.

    USGS research has experimented with zeolites applied to several different fertilizers including controlled-release nitrogen, controlled-release phosphorous fertilizers, and in the release of trace nutrients.

    Controlled-release fertilizers were tested in greenhouse pot experiments with sorghum-sudangrass using NH4-saturated zeolite (clinoptilolite) and P-rock with a phosphate application rate of 340 mg P per kg soil, and zeolite/P-rock ratios ranging from 0 to 6. Total phosphate uptake and phosphate concentration measured for the grass were related linearly to the zeolite/P-rock ratio, and yields summed over four cuttings were as much as four times larger than control experiments.

    Bentham Science Zeolites in Soil Remediation Processes

    Bentham Science

    Author(s): Maria K. Doula, Victor A. Kavvadias and Kyriakos Elaiopoulos

    Zeolites, natural and synthetic, have been widely studied regarding their suitability to be used in many different environmental applications worldwide. Their unique structure of channels, cavities and cages results in large internal surface available for a variety of reactions, which could also be applied for the protection, improvement and also remediation of soil quality. Soil is a key component of natural ecosystems and environmental sustainability depends largely on a sustainable soil ecosystem. Unlike other environmental compartments (e.g., atmosphere, water) pollutants have long residence times in soil while the overall degradation or, finally, the destruction/collapse of a soil system and, consequently its ecosystem, could be appeared many years after the beginning of its degradation. This is due to its capability to act as filter and natural bio-degrader for a lot of organic and inorganic elements and compounds, capability which, however, could be exhausted due to continuous disposal of excess nutrients, harmful and toxic compounds. Many soil remediation techniques have been developed and applied so far; some of them include the use of natural zeolites and mainly clinoptilolite. However, the most of the obtained results, regarding their suitability to be used as soil amendments for remediation purposes, have been obtained through lab experiments and small scale field applications. Regardless the limited extension of their application on real problems of soil pollution(except the case of land application after Chernobyl disaster), there are plenty of research works that deal with the potential of zeolites to be included in the inventory of the effective and efficient amendments for soil remediation.